GB2221944A - Foldable roman blind. - Google Patents
Foldable roman blind. Download PDFInfo
- Publication number
- GB2221944A GB2221944A GB8907457A GB8907457A GB2221944A GB 2221944 A GB2221944 A GB 2221944A GB 8907457 A GB8907457 A GB 8907457A GB 8907457 A GB8907457 A GB 8907457A GB 2221944 A GB2221944 A GB 2221944A
- Authority
- GB
- United Kingdom
- Prior art keywords
- loops
- window covering
- loop
- curtain wall
- web
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/262—Lamellar or like blinds, e.g. venetian blinds with flexibly-interconnected horizontal or vertical strips; Concertina blinds, i.e. upwardly folding flexible screens
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/262—Lamellar or like blinds, e.g. venetian blinds with flexibly-interconnected horizontal or vertical strips; Concertina blinds, i.e. upwardly folding flexible screens
- E06B2009/2627—Cellular screens, e.g. box or honeycomb-like
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
- Blinds (AREA)
Description
2 2,21944 1 FOLDABLE WINDOW COVERING Various different foldable window
coverings have heretofore been made from a single web of material. In the so-called "Roman Shadeen such as disclosed in U.S. Patents 1,752,610 and 4,069,857# a single web is folded to form relatively stiff horizontally extending ribs at one side of the shade and the lift cords extend through openings in the ribs. With such shades, the ribs are spaced apart and the lift cords are exposed to view from one side of the shade, when the shade is in an expanded condition. In U.S. Patent 2#305#559, a single web of material is folded to form a series of inverted V-shaped louvers. U.S. Patent 3,055,419 discloses a window shade in which a single web is folded to form box pleats alternately at opposite sides of the panel. In U.S. Patent 4,347,887# a single web of material Is reversibly folded in zig zag fashion and bonded to Itself at spaced Intervals to form a plurality of cells arranged in a double row configuration.
various objects of the present invention are to provide a decorative window covering formed from a single web of fabric and which is expandable and contractable for use as a movable window shade; which has distinctly different front and back appearance when in an expanded condition:
which conceal& the lift cords when the window covering is 2 in an expanded condition, which has good thermal insulation characteristics, and which can be economically formed and fabricated into custom width and length window shades.
Accordinglyi the present invention provides a foldable window covering formed of a single web of flexible material, the window covering having a top and a bottom movable relative to each other between a folded and an expanded condition. The web has a plurality of indepen- dent loops extending from one side only with opposed faces of each loop connected together along a horizontal seam parallel to and spaced from the distal end of the loop. The seams of adjacent loops are vertically spaced apart along the web such that the web forms a curtain wall 1 section between adjacent loops which limits the spacing between adjacent loops when the window covering is in an expanded condition, and the loops are adapted to hang downwardly and have a length such that each loop overlaps a subjacent loop when the window covering is in the expanded condition. A vertical row of openings extends through the loops adjacent the curtain wall sections and lift cords extend through the row of openings for moving the top and bottom of the window covering relative to each other.
The loops define a first vertical row of horizontal pockets inside the loops and a second vertical row of horizontal pockets between 'the loops and the curtain wall sections, when the window covering is in the expanded condition. The curtain wall sections are advantageously provided with a horizontally extending crease intermediate adjacent loops to facilitate folding of the curtain wall sections to the folded condition of the window covering.
Q 4 3 In the accompanying drawings:- FIGURE 1 is an exploded perspective view of a foldable window covering embodying the present inventionj with parts broken away to illustrate details of construction; Fig. 2 is a diagrammatic view illustrating the folding, seaming and creasing of the window covering; Fig. 3 is a fragmentary vertical sectional view illustrating the window covering in an expanded condition; and Fig. 4 is a fragmentary sectional view illustrating the window covering in a folded or collapsed condition.
The foldable window covering is formed of a single web of material. The web of fabric can be a woven, non- is woven, knit or stitch bonded fabric and can be formed from synthetic or natural fibers or a blend of synthetic and natural fibers. Further, the web of material from which the window covering is formed, can have a different color or texture at opposite sides. For example, the web of material could be a decorative woven pattern on the one side with a solid neutral or white surface on the other side. Further, one side such as the back side of the fabric could be vacuum metalized, laminated or knife coated to create a neutral exterior appearance.
The web is formed into a plurality of independent loops L that extend from one side only of the web, and opposed faces of each loop are connected together along a horizontal seam S that extends parallel to and is spaced from the distal end L, of the loop. The seams of adjacent loops are spaced apart a preselected distance along the web such that the web forms a curtain wall section C between adjacent loops, which curtain wall section limits the spacing between adjacent loops when the 4 window covering is in the expanded condition. The loops L formed in the flexible web are adapted to hang downwardly and have a length such that each loop overlaps a subjacent loop when the window covering is in the expanded condi- tion, as shown in Fig. 3. More specifically, the curtain wall sections C limit the spacing between adjacent loops to a preselected distance designated d in Fig. 2 when the window covering is in the expanded condition and the curtain wall sections are substantially straight. The loop extension, measured from the curtain wall section to the distal end of the loop, and designated e in Fig. 2, is made greater than the distance d, so that the loops hang down and overlap a subjacent loop when the window covering is in the expanded condition. The seam S is spaced from the distal end L, of the loop to form a pocket P, in each loop. Thus, when the curtain is in an expanded condition, the loops L form a first vertical row of horizontal pockets P, inside the loop, and a second vertical row of pockets P2 between the loops and the curtain wall sec- tions. The dual rows of pockets P, and P2 enhances the thermal insulation characteristics of the window covering, when it is in an expanded condition.
Vertical rows of openings H are formed in the loops L adjacent the curtain wall sections C, for receiving lift cords 10. The holes are advantageously formed in the seams S and, for this purposes the seams are formed with an effective width designated f in Fig. 2, which is substantially greater than the cross sectional size of the holes H. The seams can be formed in any desired manner, for example by ultrasonic welding when the web is formed of synthetic fibers or a blend of synthetic and natural fibers, or by heat sealing if the web is formed of a thermoplastic material. The seam can also be formed by k use of adhesives or by sewing. As will be readily understood, the seam does not have to be bonded across the entire width Fi but can instead be formed by spaced rows or by a pattern of sealing or stitching which joins the faces of the loop together along the width F. The holes H can conveniently be formed in the loops by punching or otherwise at the time the loops are joined together along the seam S. The holes are preferably formed at a plurality of equally spaced locations along the seam, to facilitate fabrication of window shades of different width, with a minimum of scrap.
The curtain wall sections C are advantageously formed with a crease designated C, medially between the adjacent loops L, and oriented with the apex of the crease at the rear side of the web, to facilitate out folding of the curtain wall sections when the window covering is moved to its collapsed condition as shown in Fig. 4.
A window shade fabricated of the foldable window covering material is shown in Fig. 1. The seam portion 5 of the loop L at the upper end of the foldable window covering is secured, as by a slat 11 and suitable fasteners (not shown) to a headrail 12. The seam portion S of the lower loop is attached as by a slat 14 and fasteners 15 to a bottom rail insert 16 that is adapted for mounting on a bottom rail 17. The lift cords 10 are attached at their lower ends to the bottom rail, and extend upwardly through selected rows of the openings H in the loops L and through guides 18 in the headrail and then lengthwise of the headrail and over a cord guide and lock assembly 21 and terminate in a lift cord tassel 10a. The headrail is adapted to be mounted by conventional brackets 22 to a supporting surface such as a window casing, or wall or the like.
6 is From the foregoing it is believed that the construction and operation of the foldable window covering will be readily understood. When the bottom rail is lowered to allow the window covering to move to its expanded condition as shown in Pigs. 1 and 3, the curtain wall sections C move to a generally straight condition so that the back side of the window covering has a plain appearance. The curtain wall sections limit the spacing between adjacent loops when the window covering is in its expanded condition and each loop overlaps a subjacent loops so that the front side of the window covering has the appearance of a softly folded fabric. When in the expanded condition, the loops define a first vertical row of horizontal pockets P, inside the loops and a second vertical row of horizontal pockets P2 between the loops and the curtain wall sections C. The double row of air pockets reduces thermal transmittance through the window covering. If the window covering is formed of a translucent or an open weave or knit fabric, the loops in the web also reduce light or sight transmission through the window covering. However, the loops remain independently movable so that a person at the inside of the window covering would lift a loop or loops to peer through the curtain wall section, without raising or folding the entire window shade. Since one side of the web is exposed at the inner side of the window covering and the opposite side of the web is exposed at the outer side, the web can be formed of a material with different patterns, coatings or coloring at opposite sides of the web. The lift cords which extend through holes in the loops at the loops, are disposed in front of the curtain wall sections and behind the depending portion of the loops so that the lift cords are concealed from view at both sides of the window covering.
Claims (5)
1. A foldable window covering comprising a single web of flexible material, the window covering having a top and a bottom movable relative to each other between a folded and an expanded condition, the web having a plurality of independent loops extending from one side only of the web with the opposed faces of each loop con- nected together along a horizontal seam parallel to &nd spaced from the distal end of the loop to form a pocket in the loop, the seams of adjacent loops being vertically spaced apart a preselected distance along the web such that the web forms a curtain wall section between adjacent loops when the window covering is in the expanded condition, the loop extension, measured from the curtain wall section to the distal end thereof, being greater than said preselected distance, at least one vertical row of openings extending through the loops adjacent the curtain wall sections, and lift cord means extending through said row of openings for moving the top and bottom relative to each other, the loops defining a first vertical row of horizontal pockets inside the loops and a second vertical row of horizontal pockets between the loops and the curtain wall sections, when the window covering is in the expanded condition.
2. A foldable window covering according to claim 1 wherein the curtain wall sections limit spacing of the loops to substantially said preselected distance when the curtain is in the expanded condition.
3. A foldable covering according to claim 1 wherein the loops are adapted to hang downwardly and have a length such that each loop overlaps a subjacent loop when the window covering is in an expanded condition.
1
4. A foldable window covering according to claim 1 wherein the curtain wall sections have a horizontally extending crease intermediate adjacent loop to facilitate folding of the curtain wall sections to the folded condition of the window covering.
5. A foldable covering according to any one of claims 1-4 wherein the vertical row of openings extend through the seams in the loops.
Published 1990atThe Patent Office,State House. 6671 High Holborn. LondonWC1R4TP. Further copies maybe Obtainedfrom The PatentOfficeSales Branch. St Mary Cray. Orpingtor. Kei.t BR5 Z=. Prirned by TAjl:iplex techniques ltd. St Mary Cray, Kent. Con. 1187
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/233,729 US4846243A (en) | 1988-08-19 | 1988-08-19 | Foldable window covering |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8907457D0 GB8907457D0 (en) | 1989-05-17 |
GB2221944A true GB2221944A (en) | 1990-02-21 |
GB2221944B GB2221944B (en) | 1992-04-08 |
Family
ID=22878461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8907457A Expired - Fee Related GB2221944B (en) | 1988-08-19 | 1989-04-03 | Foldable window covering |
Country Status (3)
Country | Link |
---|---|
US (1) | US4846243A (en) |
CA (1) | CA1293920C (en) |
GB (1) | GB2221944B (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2241644A (en) * | 1990-03-10 | 1991-09-11 | Margaret Rose Pye | Improvements in or relating to decorative coverings |
GB2246593A (en) * | 1990-08-01 | 1992-02-05 | Jan Birger Thomsen | Roman blind folding arrangement |
EP0552784A1 (en) * | 1992-01-21 | 1993-07-28 | Hunter Douglas International Nv | Venetian blinds |
GB2264332A (en) * | 1992-02-21 | 1993-08-25 | Post Office | Security barrier |
US5551500A (en) * | 1992-11-23 | 1996-09-03 | Louver-Lite Ltd. | Pleated blind |
US5680890A (en) * | 1994-05-23 | 1997-10-28 | Louver-Lite Ltd. | Pleated blind |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5097884A (en) * | 1989-11-06 | 1992-03-24 | Hunter Douglas Inc. | Roman shade |
US5090098A (en) * | 1989-11-06 | 1992-02-25 | Hunter Douglas Inc. | Method of manufacturing a roman shade |
US5104469A (en) * | 1990-05-09 | 1992-04-14 | Hunter Douglas Inc. | Method of making a roman shade |
US5603368A (en) * | 1990-05-09 | 1997-02-18 | Hunter Douglas Inc. | Roll up roman shade |
US5129440A (en) * | 1990-05-09 | 1992-07-14 | Hunter Douglas Inc. | Roman shade |
US5158632A (en) * | 1990-10-15 | 1992-10-27 | Hunter Douglas Inc. | Method of making an expandable and collapsible window covering |
US5143135A (en) * | 1991-01-18 | 1992-09-01 | Levolor Corporation | Low profile headrail venetian blind |
US6152205A (en) * | 1992-08-25 | 2000-11-28 | Toti; Andrew J. | Window covering system |
US5207257A (en) * | 1992-09-25 | 1993-05-04 | Springs Window Fashions Division, Inc. | Adjustable expandable and collapsible shade |
US5341864A (en) * | 1992-09-25 | 1994-08-30 | Springs Window Fashions Division, Inc. | Adjustable expandable and collapsible shade |
US5390720A (en) * | 1993-07-09 | 1995-02-21 | Hunter Douglas, Inc. | Tubular cell window covering with undulations along the length of the cells |
CA2144280A1 (en) * | 1994-03-10 | 1995-09-11 | James Arthur Ford | Cellular shade material |
US5701940A (en) * | 1994-03-10 | 1997-12-30 | Cooper Industries, Inc. | Cellular shade |
EP0688935A1 (en) * | 1994-06-21 | 1995-12-27 | Newell Operating Company | Blind with curtain |
US5458179A (en) * | 1994-08-29 | 1995-10-17 | Magaldi; Glen | Interlocking shutter curtain assembly |
US5834090A (en) * | 1994-12-28 | 1998-11-10 | Teh Yor Industrial Co., Ltd. | Cellular structure |
US5566735A (en) * | 1995-03-28 | 1996-10-22 | Verosol Usa Inc. | Roman-type shade |
US5749404A (en) | 1995-05-10 | 1998-05-12 | Hunter Douglas Inc. | Fabric for an architectural covering and method and apparatus of manufacturing same |
AU709982B2 (en) * | 1995-05-10 | 1999-09-09 | Hunter Douglas International N.V. | Improved vane for an architectural covering and method of making same |
JP4723512B2 (en) * | 2003-12-22 | 2011-07-13 | ハンター・ダグラス・インコーポレーテッド | Retractable shade for covering building openings |
US20060225845A1 (en) * | 2005-04-06 | 2006-10-12 | Marusak Thomas J | Segmented Roman window shade |
US20060225846A1 (en) * | 2005-04-06 | 2006-10-12 | Marusak Thomas J | Segmented Roman window shade |
US20060237147A1 (en) * | 2005-04-26 | 2006-10-26 | Springs Window Fashions Lp | Vertical shade |
US20070107854A1 (en) * | 2005-11-16 | 2007-05-17 | Hunter Douglas Inc. | Operating system for collapsible covering for architectural openings |
US7513294B2 (en) | 2005-11-16 | 2009-04-07 | Hunter Douglas Inc. | System for suspending non-retractable shades in architectural openings |
US20090139667A1 (en) * | 2007-11-30 | 2009-06-04 | Claus Graichen | Blind With Pockets |
US20090139664A1 (en) * | 2007-11-30 | 2009-06-04 | Claus Graichen | Blind with Pockets |
US8261807B2 (en) * | 2008-04-28 | 2012-09-11 | Hunter Douglas Inc. | Dual fabric covering for architectural openings |
US20110056630A1 (en) * | 2009-09-09 | 2011-03-10 | Hunter Douglas Inc. | Segmented vertical vane covering for architectural openings |
US9493981B2 (en) | 2009-12-23 | 2016-11-15 | Levolor, Inc. | Safety mechanism for a window covering |
CN106567670B (en) | 2010-06-23 | 2020-01-14 | 亨特道格拉斯公司 | Plastic double-honeycomb blind for architectural openings |
US9249618B2 (en) | 2011-08-26 | 2016-02-02 | Hunter Douglas Inc. | Double pleat cellular shade with vanes |
WO2013032997A1 (en) | 2011-08-26 | 2013-03-07 | Hunter Douglas Inc. | Feature for inhibiting light stripe between cellular elements in a covering for an architectural opening |
US9133658B2 (en) | 2013-03-05 | 2015-09-15 | Hunter Douglas Inc. | Sound attenuating covering for an architectural opening |
USD764212S1 (en) | 2013-03-14 | 2016-08-23 | Hunter Douglas Inc. | Covering for an architectural opening |
USD734060S1 (en) | 2013-04-01 | 2015-07-14 | Hunter Douglas Inc. | Cellular shade component |
USD734061S1 (en) | 2013-04-01 | 2015-07-14 | Hunter Douglas Inc. | Portion of a cellular shade component |
USD764836S1 (en) | 2014-09-08 | 2016-08-30 | Hunter Douglas Inc. | Covering for an architectural opening having multiple columns of double cells |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1937342A (en) * | 1928-08-30 | 1933-11-28 | Higbie Henry Harold | Material for controlling illumination |
US1752610A (en) * | 1928-11-28 | 1930-04-01 | Henry K Mayer | Awning or curtain |
GB370176A (en) * | 1931-03-26 | 1932-04-07 | G D Peters & Co Ltd | Collapsible or folding blind, shutter or the like |
US2305559A (en) * | 1942-09-30 | 1942-12-15 | Litecontrol Corp | Louver blind |
DE897003C (en) * | 1951-12-29 | 1953-11-16 | Hans Vollmar | Window or door shutter made of sheet steel |
DE1146229B (en) * | 1959-06-20 | 1963-03-28 | Gardisette Werk Dr Baier & Co | Curtain or curtain fabric and process for its manufacture |
US3055419A (en) * | 1960-11-18 | 1962-09-25 | Arnold D Rubin | Tracked accordion window shade |
US3181597A (en) * | 1962-11-19 | 1965-05-04 | Gerald L Berkin | Pleating means for fabrics |
US3777800A (en) * | 1971-12-30 | 1973-12-11 | Y Susoev | Roman shade and method of fabrication |
US4069857A (en) * | 1976-04-12 | 1978-01-24 | Clopay Corporation | Roman shade and method for making same |
FI803375L (en) * | 1979-10-30 | 1981-05-01 | Felix Heescher | ISOLERING AV HALLFORMIGA BYGGNADER |
US4347887A (en) * | 1980-10-06 | 1982-09-07 | Brown Lawrence P | Thermal shutters |
US4535828A (en) * | 1983-05-02 | 1985-08-20 | Brockhaus Peter B | Window insulator |
US4677013A (en) * | 1985-10-25 | 1987-06-30 | Hunter Douglas Inc. | Honeycomb structure having a longitudinally extending back face |
-
1988
- 1988-08-19 US US07/233,729 patent/US4846243A/en not_active Expired - Fee Related
-
1989
- 1989-03-22 CA CA000594459A patent/CA1293920C/en not_active Expired - Fee Related
- 1989-04-03 GB GB8907457A patent/GB2221944B/en not_active Expired - Fee Related
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2241644A (en) * | 1990-03-10 | 1991-09-11 | Margaret Rose Pye | Improvements in or relating to decorative coverings |
GB2246593A (en) * | 1990-08-01 | 1992-02-05 | Jan Birger Thomsen | Roman blind folding arrangement |
GB2246593B (en) * | 1990-08-01 | 1994-08-03 | Jan Birger Thomsen | Apparatus for gripping sheet fabric |
EP0552784A1 (en) * | 1992-01-21 | 1993-07-28 | Hunter Douglas International Nv | Venetian blinds |
US5309974A (en) * | 1992-01-21 | 1994-05-10 | Hunter Douglas Inc. | Venetian blinds |
GB2264332A (en) * | 1992-02-21 | 1993-08-25 | Post Office | Security barrier |
GB2264332B (en) * | 1992-02-21 | 1996-05-15 | Post Office | Security barrier |
US5551500A (en) * | 1992-11-23 | 1996-09-03 | Louver-Lite Ltd. | Pleated blind |
US5680890A (en) * | 1994-05-23 | 1997-10-28 | Louver-Lite Ltd. | Pleated blind |
Also Published As
Publication number | Publication date |
---|---|
GB8907457D0 (en) | 1989-05-17 |
US4846243A (en) | 1989-07-11 |
CA1293920C (en) | 1992-01-07 |
GB2221944B (en) | 1992-04-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19960403 |